plot and hist in matlab

please anybody answer me How can I get two plot in one graph using bar or hist or plot

and how can I use ((hold and grid command)) with plot and hist

Thanks in advance

Answer 1

[Matt Fig]

Two histograms:

x = -2.9:0.1:2.9;
y = randn(10000,1);
hist(y,x) 
h = findobj(gca,'Type','patch');
set(h,'FaceColor','r','EdgeColor','w')
z = randn(size(y))/3;
hold on  % make sure next one shows up.
hist(z,x)

[reem]

Thank you Matt and sorry for bothering you

when I apply this manner,only one line appear on the graph

I have two value,one value(estimated and another true)

and I want to plot tow these values in the same graph and when I used your manner only one line appeared on the graph,what is the problem?

[Matt Fig]

Did you copy and paste the above code completely?

[reem]

Yes,but I changed some variables to run my program

x = -2.9:0.1:2.9;

hist(proestimated,x)

h = findobj(gca,'Type','patch');

set(h,'FaceColor','r','EdgeColor','w')

hold on

hist(True_probability,x)

[Matt Fig]

Does the second hist cover up the first? Try hist(True_probability,x) first, then doing hist(proestimated,x).

[reem]

I do that but nothing is changed

the same result appeared